James powell



No. 627,|4. Patented Lune 20, |899. J. POWELL.

STRAIGHTWAY VALVE.

(Application Bled Aug. 1B, 1898.)

(No Model.)

tor.

co.. maumo.. WASHINGTON. u. c,

Nrrnn STATES PATENT OFFICE.

JAMES POWELL, OF CINCINNATI, OHIO, ASSIGNOR TO THE VILLIAMPOWELLCOMPANY, OF SAME PLACE.

SITRAIGHTWAY VAL .VE.

SPECIFICATION 'forming part of Letters Patent No. 627,140, dated June20, 1899.

' Application ined August 1s, 189s.

T @ZZ whom it may concern.:

Be it known that I, JAMES POWELL, a cilizen of the United States,residing` at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Straightway Valves;and I do hereby declare the following t'o be a full, clear, and exactdescription of the invention, reference being had to the annexeddrawings, which form a part of this specification.

This invention relates to those straightway valves which consist,essentially, of a vibrating lever having a pair of disks loosely`coupledto its free end in such a manner as to be firmly wedged against. a pairof opposing seats when the lever is properly operated; and my presentimprovement is more nearly allied to the peculiar construction of suchvalves shown in Letters Patent No. 533,991, granted to James H. LaymanFebruary l2, 1895. In said patent the disks have pivots A that traverseperforations in a longitudinallydivided carrier that slides back andforth on a vibrating lever as the latter swings up and down within aninclosing shell, the ends of said pivots being in direct contact withthe sides of a wedge near the free end of said lever and integraltherewith. This construction answers very Well for many purposes; butthere are cases where it is inexpedient to use a divided carrier, and insuch emergencies I employ a pair of automatically-sliding taperingcarriers whose opposing faces bear directly against the sides of thewedge, while the outer faces of said carriers are pitted to receive thevalve-pivots, as hereinafter more fully described.

In the annexed drawings, Figure lis a vertical section of my straightwayvalve, taken in the plane of its vibrating lever, the free end of whichis swung up to elevate the looselycoupled disks and thereby open oruncover the iiuid passages or channels. In this illustration one of thedisks and its carrier are omitted, and the position of the other carriervis indicated by dotted, lines. Fig. 2 is a similar section of thevalve, its lever being swung down to close both of the fluid-passages,one of the disks being omitted, but its carrier being shown in itsproper place on said lever. Fig. 3 is a sectionized plan vof the SerialNo. 688,893. (No model.)

closed valve. Fig. 4 is an enlarged longitudinal section of thelever-wedge, the valves,

a straightway valve, and B B are the pipe ends thereof, which pipe endsare traversed by ordinary channels or Huid-passages?) h', terminatingwith seats C C, whose ports communicate with the lower portion of achamber D, having duplicate guides E E E E at its`opposite sides. F is acap secured upon this chamber. these seats C C' are disks or valves G H,from whose inner faces project short lateral studs or pivots g h, asshown in Figs. 3 and 4. These pivots enter pits i t" in the outer facesof -a pair of valve-carriers 'I I', which faces are about parallel withthe backs of the valves Cr H, but the inner faces of the carriers aresloping or inclined.

J is the vibrating lever secured to the square portion K of a rock-shaftL, having an operating-handle M.` N N are longitudinal grooves made inthe opposite sides of this lever and near its free end, said groovesbeing deepest at their ends toward the axis of said lever and graduallydying out toward its free end, as more clearly shown in Fig. 4; but insome constructions of the valve this shape of said grooves may beexactly reversed, so as to'dispose their deeper portions toward the endof the lever instead of away from it. Consequently an integral Wedge Ois thus formed on said lever, and the inner sides of the valve-carriersI I slope at substantially the same angles as the sides of said wedge.

The operation of this valve is substantially the same as the/onedescribed in the patent previously alluded to-that is to say, when leverJ is swung down, as shown in Fig. 2,V the two carriers I I graduallyslide along the wedge O of said lever, thereby forcing the disks G Hvery firmly against the seats C C and effectually closing the fluidpassages or channels of the shell; but when said lever is swung up, asshown in Fig. l, the valves or disks are securely retained in their openpositions and permit an unobstructed iiow through said channels b b.From this descript-ion it is evident the pivots g h bear Adapted to beforced against IOO solely Within the sockets or pits t' z" of theindependent sliding carriers I I' and are nowhere in Contact with thewedge O. Consequently there is no danger of grooves being cut in thesides of the Wedge by the sliding action of said pivots, due to theup-and-down motion or vibration of the swinging lever J. Again, thesecarriers can be made of very hard. metal, so as to reduce their Wear andtear to a minimum; but if they should break or become injured in anymanner whatever it Would be an easy matter to insert new ones andWithout removing` the lever from the shell or easing.

I claim as my inventionl. The combinatiou,in a straightway valve, of aninclosing shell having a pair of Huidpassages, a pair of duplicateguides, and a pair of valve-seats; a vibrating lever fitted Within saidshell, and having an integral lon gitudinal Wedge Whose thinner end isdisposed toward the axis of said lever; a pair of tapering carriersadapted to slide against the sides of said Wedge and having pits orsockets in their outer faces; and a pair of valves or disks havinglateral pivots bearing Within said pits, for the purpose described.

2. The con1bination,in a straightway Valve, of an inclosing shell havinga pair of fluidpassages, a pair of duplicate guides, and a pair ofvalve-seats; a Vibrating lever fitted Within said shell, and having anintegral longitudinal Wedge; a pair of tapering carriers adapted toslide against the sides of said Wedge, and having pits in their outerfaces; and a pair of valves or disks having lateral pivots bearingWithin said pits, for the purpose described.

In testimony whereof I affix my signature in presence oi' two Witnesses.

JAMES POWELL. Witnesses:

JAMES H. LAYMAN, JOHN C. ROGERS.

